What is a foreign key in a MySQL database and how is it used to link tables together?
Tuesday, 08 August 2023
by EITCA Academy
A foreign key in a MySQL database is a constraint that establishes a link between two tables based on a relationship between their columns. It ensures referential integrity by enforcing that values in the foreign key column(s) of one table must match the values in the primary key column(s) of another table. This linkage allows
What is the structure of a typical MySQL database?
Tuesday, 08 August 2023
by EITCA Academy
The structure of a typical MySQL database is a fundamental aspect of web development, particularly when working with PHP and MySQL. MySQL is a widely used relational database management system (RDBMS) that provides a structured and efficient way to store and retrieve data. Understanding the structure of a MySQL database is important for designing and
- Published in Web Development, EITC/WD/PMSF PHP and MySQL Fundamentals, Getting started with MySQL, Introduction to MySQL, Examination review
Tagged under:
Columns, Database Structure, Foreign Key, Keys, MySQL, Primary Key, Relationships, Rows, Tables, Web Development